OC-nSiO₂, mg/L

DS, %

Control (water)

20 - 20

40 - 40

60 - 60

80 - 80

90.0 ± 11.5^d

62.2 ± 5.1^c

35.6 ± 1.9^b

22.2 ± 1.9^a

33.3 ± 8.8^b